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出典:Wiktionary
phosphorous acid (uncountable)
出典:Wikipedia
出典:『Wikipedia』 (2011/07/27 12:34 UTC 版)
Phosphorous acid is the compound described by the formula H3PO3. This acid is diprotic (readily ionizes two protons), not triprotic as might be suggested by this formula. Phosphorous acid is as an intermediate in the preparation of other phosphorus compounds.
Phosphorous Acid